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Exhibit J CA7LRB 112 Permit Application <br />Agile Stone Systems. Inc. <br />• Transect number 7 was run in this community at the proposed sandstone quarry site. <br />Dominant community species at transect number 7 paralleled those noted above. Total <br />plant cover was 6.9 percent, cover by litter and rock approximately 74.1 percent, and bare <br />ground equal to 19.0 percent. Average tree heights were 10 to 15 feet and average shrub <br />heights approximately 3.5 feet. <br />The potential production of native understory vegetation in normal years is typically 300 <br />pounds per acre of air-dry vegetation for this unit within the county (SCS 1995). Given <br />the amount of rock outcrop present on the azeas proposed to be disturbed on a site <br />specific basis, the potential production is believed to be a maximum of 100 pounds per <br />acre for this site. <br />3.2 Shrub/Grassland Vegetation Type <br />Dominant species within this vegetation type include blue grama, kochia (Kochia <br />scoparia), plains prickly pear (Opuntta polyacantha), and occasionally one-seed juniper. <br />Transect numbers 4 and 5 were selected to represent this vegetation community in the <br />proposed facility area near the granite quarry. Slopes were less than 2.0 percent and the <br />aspect was south-southwest. Total plant cover ranges from 27.6 to 35.8 percent. Baze <br />ground ranged from b4.2 to 72.4 percent. No ground cover was contributed by litter or <br />rock along either transect. Average shrub height was 2.5 feet with the shrubs heavily <br />hedged. Where trees occurred, their average height was 12 feet. <br />• The potential production of native understory vegetation in normal yeazs is typically <br />1,100 pounds per acre of air-dry vegetation (SCS 1995). The soil existing on site has a <br />higher percent of coarse fragment (gravel) content than the soil mapped for the area by <br />the SCS. Therefore, the potential production is believed to be approximately 800 pounds <br />per acre for this site. <br />3.3 Stream Wash Vegetation Type <br />The Stream Wash vegetation type occurs primarily along Tallahassee Creek in the <br />floodplain above the main channel. This type is subject to scouring and receives deposits <br />of alluvium during flooding (SCS 1995). As such, the vegetation extant is sparse and is <br />primarily limited to shrub and tree species along with annual weedy forbs. The dominant <br />species include rubber rabbitbrush (Chrysothamnus nauseosus), four-wing saltbush <br />(Atriplex canescens), leafy spurge (Euphorbia esula), and kochia A few scattered <br />tamarisk (Tamarix ramosissima) also occur. Since the proposed disturbance to this <br />vegetation type would be limited to 2 river crossings, no transects were run in this type. <br />The potential production of native understory vegetation was not rated for this type of <br />soil map unit by the SCS. The production potential of this unit is assumed to be <br />negligible. <br />3.4 Riparian Vegetation Type <br />The Riparian vegetation type occurs along Tallahassee Creek, primarily as a <br />• comparatively lazge, neazly level floodplain bench above the main channel. The <br />2 <br />